Die process(open and closed die)

What is forging primarily used for?

• Melting metal into liquid form

• Deformation of metal into specific shapes

• Polishing metal surfaces

• Cutting metal into smaller pieces

Which tools are mainly used in the forging process?

• Welders and cutters

• Screwdrivers and wrenches

• Hammers and presses

• Lathes and milling machines

What is one of the benefits of forging mentioned in the text?

• Reduces the melting point of metals

• Makes metals lighter

• Improves the metallurgical microstructure

• Increases the electrical conductivity of metal

What is 'open die forging'?

• A technique used only for decorative items

• The process of melting metal in open containers

• Deformation of a workpiece between non-restrictive dies

• Forging that takes place in the open air

What can be a result of open die forging?

• Lengthening of the workpiece while reducing its cross-section

• Making the workpiece waterproof

• Instant cooling of the workpiece

• Turning the metal into a liquid state

What is the size range of forgings that can be made using open die forging?

• From a few cm to 20 m in length

• From a few mm to 10 m in length

• From a few cm to 30 m in length

• From a few mm to 50 m in length

What materials are dies and accessory tools usually made of?

• Plastic and composite materials

• Wood and bamboo

• Pure aluminum and copper

• Hot work tool steels or medium carbon alloy steels

What is 'impression die forging' also known as?

• Closed die forging

• Open air forging

• Liquid metal forging

• Cold die forging

What does impression die forging involve?

• Cooling metal in open air

• Casting metal into a mold

• Deformation of metal within one or more die impressions

• Heating metal until it vaporizes

What mechanical performance advantage does forging provide?

• Typically superior to that of cast metals

• Makes metals more magnetic

• Reduces metal density

• Increases electrical resistance